Construction of morse&#39;s registering telegraphic instruments.



No. 67!,334. Patented Apr, 2, I901.

E. DUCRETET.

CONSTRUCTION OF MOBSES REGISTERING TELEGBAPHIC INSTRUMENTS.

(Application filed July 29, 1898.).

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No. 67l,334. Patented Apr. 2, I901.

E. DUCRETET.

CONSTRUCTION OF IONSES REGISTERING TELEGRA'PHIG INSTRUMENTS.

' (Applicafian filed m 29. 1598.)

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Patented Apr. 2, l90l.

No. 67l,334.

E. DUCBETET.

SES REGISTERING TELEGBAPHIC INSTRUMENTS.

(Application filgd July 29, 1898:)

GONSTRUOTIDN 0F MOB (H0 Ilodel.) 3 Sheets-Sheet 3.

a A llllllllllllll ll Ii @QN 1 41)!!! m: "cams PETER: 00., PNOYO-UTNO. wAsu-wa'rom u a UNITED STAT S AE'r EUGENE DUoRErEr, or PARIS, FRANCE.

CONSTRUCTION OF MORSES REGISTERING TELEGRAPHIC INSTRUMENTS.

SPECIFICATION forming part of Letters Patent No. 671,334, dated April 2, 1901.

Application filed July 29, 1898. Serial No. 687,201. \No model.-

To aZZ whom it may concern.-

Be it known that I, EUGENE DUCRETET, a citizen of the Republic of France, and a resident of Paris, France, have invented certain new and useful Improvements in the Construction of Morses Registering Telegraphic Instruments, of which the following is a specification. I

The present invention relates to certain improvements in Morses telegraphic receivers; and the special object thereof is to provide a device automatically throwing into and out of gear the usual clockwork actuating the feed-roller of the apparatus. Furthermore, this improved telegraph receiver or indicator is provided with a special adjusting device adapted to be easily and readily operated; and my improvements consist in the construction, combination, and arrangement of parts hereinafter more fully pointed out and claimed.

In order that my invention may be properly understood, I have hereunto appended explanatory sheets of drawings, in which I have illustrated, by wayof example, a construction of the improved apparatus embodying my invention.

Figure 1 is a side view of the apparatus, the lateral walls of the casing, as well as some of the other parts, being removed to better show the clockwork and automatic clutch device. Fig. 2 is a front view of. same. Fig. 3 is a view of the apparatus, taken from the side opposite that seen in Fig. 1 and more clearly showing the electromagnet A and 1ever L. r

Similar letters of reference denote corresponding parts throughout the figures.

The apparatus comprises the usual rectangular box inclosing the clockwork for actuating the feed-roller M, an electromagnet A, operating the indicating-lever L, and another smaller box G, preferably arranged above the former box and inclosing the means for actuating the clutch device. The feed-roller has pins 912, between which is adapted to engage the end Z of the indicating-lever L.

The indicating-lever L of the receiver, supported on the bearing P, secured to the casing of the clockwork, carries the armature P of the electromagnet A, and the free end of this lever is adapted to rock between the These obwhich is very accessible and adjustable in operation-that is, during the reception-and this adjustment is, moreover, independent from the aforesaid adjustment of lever L and stop I). The stop-screws b b are provided to limit the exact throw of the lever L in either direction.

My improved arrangement consists in an arm L, made integral with the lever L and adapted to come into contact at each attraction of the armature P by the electroniagl'iet A with a springy or resilient blade Z, secured to a stationary shoe E and adjustable by means of the screwB, as shown in Fig. 2. The arm L is provided at its lower end with a small screw 2;, by means of which the contact between said arm and the resilient blade Z is established and may be regulated. This arrangement forms a second relay.

The clockwork of the apparatus is automatically thrown into and out of gear in the following manner. Whatever may be the use of the receiver the first contact between the screw '0 and the blade Z acts on an auxiliary electromagnet H H, with local battery, to produce the attraction of an iron bar A, having a long throw or travel, this attraction being elifectuated either direct or through the intermediary of an armature A This auxiliary electromagnet H H, the iron bar A, and the armature A are housed in a box placed above the clockwork hereinafter described.

In operation the iron bar A, through the intermediary of the armature A actuates a vertical rod 4", pivotally secured to the free end of said bar and carrying at its lower enda springy blade 0", extending into the wheelwork of the apparatus. When the armature A is at restthat is, in depressed positionthe rod 1" stops the wheelwork. When this armature is attracted by the auxiliary electromagnet H H, the rod r will be raised and disengage the wheelwork.

The clockwork of the apparatus may be D and operating in a ratchet V.

-D is adapted to engage the ratchet V during cured thereto, and during the revolution of this wheel B said stoppin G approaches another pin g, secured to the last mover of the clockwork. As shown in the drawi-ngs,'the ping is secured to the endless screw V, which carries, moreover, a speed-regulator a a, usually used with this class of mechanism. The two pins 9 and G cannot contact and act upon each other except by the intervention of the springy blade '1" when A is depressed. In this position the pin 9 engages the springy blade '1" and causes it to engage the pin G to stop the movement of the clockwork. During the succession of the transmitted signs the armature A is'subjected to a series of attractions, holding the springy blader in a raised position, whereby the clockwork is allowed to revolve. After the reception of the sign, the armature A being no longer under the influence of the auxiliary electromagnet,

the springy blade 1' moves downward, and at the next passage of the'pin G this latter engages said blade 0 and causes it to engage the pin gjwhereby the movement is stopped.

A complete revolution of the wheel R unrolls a certain length of paper to receive the transmitted signs, which cover only a portion of this u'nrolled strip of paper, thus antomatically separating the successive telegrams without the intervention of the teleg raphist. The up movement of the armature A andtherefore of the springy blade 7', is eifectuated very quickly, while the down movement of these parts is checked by the following arrangement: To the armature A is pivotally secured a pawl D,'held bya spring This pawl the down movement of the armature A while it slides over said ratchet during the up movement of said armature. When the ratchet V is operated by the pawl D, it moves a small wheelwork adapted to suitably check the down movement of the blade r. 1

Myimproved apparatus is furthermore provided with a cam C,'adapted to be operated fromthe outside of the box G for the purpose to hold the armature A and therefore the stop 4", in raised position, thus transforming the apparatus into an ordinary Morse apparatus.

Having fully described my invention, what I claim, and desire to secure by'Letters Patent, is'

"1. In a Morse registering telegraphic apparatus, the combination of a depending arm on the indicating-lever, an'auxiliary electromagnet an adjustable resilient blade adapted to be engaged by said depending arm to act on said auxiliary electromagnet, and means .on the armature of the auxiliary electromagnet for engaging and stopping the clockwork of the apparatus as said armature is attracted, substantially as and for the purpose set forth.

2. In a Morse registering telegraphic apparatus, the combination of a depending arm on the indicating or registering lever an auxiliary electromagnet, an adjustable blade adapted to be engaged by said depending arm to close the circuit of said auxiliary electromagnet, said electromagnet preferably. arranged above the clockwork of the apparatus, a depending rod and a springy blade secured to the armature of said electromagnet and extending into said clockwork, suitable stops on two movable parts of the clockwork and adapted to engage said blade, and means for checking the down movement of'the said armature, substantially as and for the purpose set forth.

3. In a Morse registering telegraphic apparatus, the combination of an auxiliary electromagnet, suitable connections between the said relay and said'electromagnet to actuate the latter when the main armature of the apparatus is actuated, a depending rod on the armature of the auxiliary electromagnet, and extending into the clockwork of the apparatus, stops on two movable parts of said clockwork and adapted to engage said depending rod, and means for checking the down movement of the armature of said auxiliary electromagnet, substantially as and for the purpose set forth.

In testimony whereof I have hereunto sub- EUGEN DUORETET.

Witnesses:

PHILIPPE LAI-IERE, JULEs POYEN.

IOO 

